B16 Ecosystem Flashcards
Why must material in the living world be recycled?
Because otherwise we will run out of resources
What chemical elements are recycled when animals and plants decay?
Mineral Ions
Who uses carbon dioxide in the atmosphere and what for?
Plants use carbon dioxide for photosynthesis
Why is the water cycle important?
Because all life needs water to survive
What is the role of photosynthesis in the carbon cycle?
Plants take carbon dioxide from the atmosphere and use it for photosynthesis
what is the role of respiration in the carbon cycle?
Animals breathe out waste carbon into the atmosphere in the form of carbon dioxide
What is the role of combustion in the carbon cycle?
When combustion occurs, the carbon in the fuel reacts with the oxygen in the air to form carbon dioxide which goes into the atmosphere
